OpenAI requires investors to contribute at least $250 million. In addition, OpenAI will decide which investors can participate in its latest $6.50 billion round of financing. According to people familiar with the matter, OpenAI's latest round of financing is close to completion, and potential investors will know on Friday whether they will participate in the deal. The artificial intelligence startup's $6.50 billion financing has been oversubscribed, which means investors want to put in more money than the company is prepared to take on, according to people familiar with the matter. One of the people said that the market is in excess of billions of dollars, and some investors will know on Friday that they are not selected.